Title: UCSS causing reference error in the browser console
Last modified: June 15, 2024

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# UCSS causing reference error in the browser console

 *  Resolved [mtdas99](https://wordpress.org/support/users/mtdas99/)
 * (@mtdas99)
 * [1 year, 11 months ago](https://wordpress.org/support/topic/ucss-causing-reference-error-in-the-browser-console/)
 * Hello ssupport,
 * Firstly when I disabled UCSS, CCSS, Combine etc. the page was loading fine in
   mobile but there was a CLS issue in the Desktop. Then I enabled CSS combine, 
   UCSS, CCSS and the CLS issue disappears in the desktop but browser errors shown
   in the mobile as Reference Errors like below:
    1. ReferenceError: jQuery is not defined at Object.init ([https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSocialSharing.js?ver=12.6.6:2:46](https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSocialSharing.js?ver=12.6.6:2:46))
       at [https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSocialSharing.js?ver=12.6.6:6:443](https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSocialSharing.js?ver=12.6.6:6:443)
       at [https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSocialSharing.js?ver=12.6.6:6:451](https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSocialSharing.js?ver=12.6.6:6:451)
    2. TypeError: Cannot read properties of undefined (reading ‘getBackendVar’) at 
       [https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSmartSidebar.js?ver=12.6.6:2:102](https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSmartSidebar.js?ver=12.6.6:2:102)
       at [https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSmartSidebar.js?ver=12.6.6:21:31](https://sitenest.org/wp-content/plugins/td-composer/legacy/Newspaper/js/tdSmartSidebar.js?ver=12.6.6:21:31)
 * Please help me to resolve this errors. Report number: **EGFIIBCH**
    -  This topic was modified 1 year, 11 months ago by [mtdas99](https://wordpress.org/support/users/mtdas99/).
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fucss-causing-reference-error-in-the-browser-console%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Support [qtwrk](https://wordpress.org/support/users/qtwrk/)
 * (@qtwrk)
 * [1 year, 11 months ago](https://wordpress.org/support/topic/ucss-causing-reference-error-in-the-browser-console/#post-17828555)
 * I don’t see such error at that page linked at bottom of OP
 * please explain a bit how exactly do I reproduce it ?

Viewing 1 replies (of 1 total)

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## Tags

 * [browser error](https://wordpress.org/support/topic-tag/browser-error/)

 * 1 reply
 * 2 participants
 * Last reply from: [qtwrk](https://wordpress.org/support/users/qtwrk/)
 * Last activity: [1 year, 11 months ago](https://wordpress.org/support/topic/ucss-causing-reference-error-in-the-browser-console/#post-17828555)
 * Status: resolved